Cleaning device for cleaning a vehicle element

Abstract

The invention relates to a cleaning device ( 1 ) for cleaning a vehicle element, comprising at least a liquid supply source ( 8 ), a spray nozzle unit ( 3 ) and a housing ( 2 ) which encloses the spray nozzle unit ( 3 ) at least in portions and which can be arranged or is arranged in a vehicle component, wherein the spray nozzle unit ( 3 ) is linearly movable relative to the housing ( 2 ), wherein the spray nozzle unit ( 3 ) can be connected or is connected to the liquid supply source for the entry of a cleaning liquid, and wherein the spray nozzle unit ( 3 ) can be moved by means of pressure of the cleaning liquid when the cleaning liquid enters.

1 . Cleaning device ( 1 ) for cleaning a vehicle element, comprising at least:
 a liquid supply source ( 8 ),   a spray nozzle unit ( 3 ) and   a housing ( 2 ) which encloses the spray nozzle unit ( 3 ) at least in portions and which can be arranged or is arranged in a vehicle component, wherein the spray nozzle unit ( 3 ) is linearly movable relative to the housing ( 2 ), wherein the spray nozzle unit ( 3 ) can be connected or is connected to the liquid supply source ( 8 ) for the entry of a cleaning liquid, and wherein the spray nozzle unit ( 3 ) can be moved by means of pressure of the cleaning liquid when the cleaning liquid enters.   
     
     
         2 . Cleaning device ( 1 ) according to  claim 1 , wherein the housing ( 2 ) has an entry opening ( 2 . 5 ) for the entry of the cleaning liquid, which entry opening is covered by the spray nozzle unit ( 3 ) when the latter is in an idle state, wherein when the cleaning liquid enters, the spray nozzle unit ( 3 ) is movable relative to the entry opening ( 2 . 5 ) and away therefrom. 
     
     
         3 . Cleaning device ( 1 ) according to  claim 2 , wherein the spray nozzle unit ( 3 ) is arranged at a distance from the entry opening ( 2 . 5 ) in a use state and releases an inner space ( 2 . 6 ) of the housing ( 2 ) which is fluidically connected to the entry opening ( 2 . 5 ). 
     
     
         4 . Cleaning device ( 1 ) according to any of the preceding claims, wherein the spray nozzle unit ( 3 ) comprises a closed first end ( 301 ) and a second end ( 302 ) provided with a nozzle opening ( 3 . 2 . 2 ), wherein at least one inlet channel ( 303 ) for the cleaning liquid is formed between the ends ( 301 ,  302 ). 
     
     
         5 . Cleaning device ( 1 ) according to  claim 4 , wherein the spray nozzle unit ( 3 ) comprises, in the region of the closed first end ( 301 ), a lateral inlet opening ( 3 . 1 . 2 ,  3 . 2 . 5 ) for the entry of the cleaning liquid into the inlet channel ( 303 ). 
     
     
         6 . Cleaning device ( 1 ) according to  claim 5 , wherein the lateral inlet opening ( 3 . 1 . 2 ,  3 . 2 . 5 ) is covered by an inner wall ( 2 . 7 ) of the housing ( 2 ) when the spray nozzle unit ( 3 ) is in the idle state and is uncovered when the spray nozzle unit ( 3 ) is in the use state. 
     
     
         7 . Cleaning device ( 1 ) according to any of  claims 3  to  6 , wherein the spray nozzle unit ( 3 ) comprises at least one check valve ( 3 . 3 ), which is arranged in the region of the closed first end ( 301 ) and/or in the inlet channel ( 303 ). 
     
     
         8 . Cleaning device ( 1 ) for cleaning a vehicle element, comprising at least
 a housing ( 2 ) which can be arranged or is arranged in a vehicle component,   a spray nozzle unit ( 3 ) which can be moved linearly relative to the housing ( 2 ) and which can be moved, in particular by means of the pressure of the cleaning liquid, when a cleaning liquid enters, wherein   the spray nozzle unit ( 3 ) comprises at least one piston ( 3 . 1 ) and a spray nozzle ( 3 . 2 ) which is fluidically connected to the piston ( 3 . 1 ), and wherein   the piston ( 3 . 1 ) and/or the spray nozzle ( 3 . 2 ) has at least one inlet opening ( 3 . 1 . 2 ,  3 . 2 . 5 ) formed on the side for conveying the cleaning liquid from an inner space ( 2 . 6 ) of the housing ( 2 ) in the direction of a nozzle opening ( 3 . 2 . 2 ) of the spray nozzle ( 3 . 2 ).   
     
     
         9 . Cleaning device ( 1 ) according to  claim 8 , wherein the inlet opening ( 3 . 1 . 2 ,  3 . 2 . 5 ) formed on the side is covered by an inner wall ( 2 . 7 ) of the housing ( 2 ) when the spray nozzle unit ( 3 ) is in an idle state and is uncovered when the spray nozzle unit ( 3 ) is in a use state. 
     
     
         10 . Cleaning device ( 1 ) according to either  claim 8  or  claim 9 , wherein the piston ( 3 . 1 ) and the spray nozzle ( 3 . 2 ) form an inlet channel ( 303 ) for the cleaning liquid, in which channel at least one check valve ( 3 . 3 ) is arranged.